Folder for sewing machines



1.1. HEAP. FOLDER 'FOR SEWING MACHINES.

APPLICATION FILED NOV. 8, 1918- Patented July 1, 1919.

2 SHEETSSHEE'T I.

J. J. HEAP.

FOLDER FOR SEWING MACHINES. APPLICATION FILED NOV. 8, 191a.

Patented July 1, 1919.

2 SHEETS-SHEET 2.

OF NEW YORK, N.

Y., ASSIGNOR T0 UNION SPECIAL MACHINE COMPANY,

- OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

I FOLDER FOR sawmc-macnrnns.

v To all whom it may concern:

Be it known that 1, Jesse J. HEAP, a citizen of the United States, residing at New York city, in the county of Kings, State of New York, have invented certain new and useful Improvements in Folders for Sewing- Machines, of .which-the following is a description, reference being had to-the accompanying drawing and to the figures of reference marked thereon.

Theinvention relates to new and useful improvements in folders for sewing machines, and more particularly to a folder for formin a double lap seam fold.-

An '0 ject of the invention is to provide .a folder of tlhe'above chiiracgerfwgth means for idin t e u per p y o I a ric, turning Edderniath th edge of said upper ply of fabric and for forming a rentrant fold in said upper ply of fabric back from the edge thereof, so as to .give to the seam an appearance of having been covered by a tape.

In'the drawings which show by way of illustration one embodiment of the invention- Figure 1 is a front view of a folder em- I bodymg my improvements;

Fig. 2 is a rear View of the same; Fig. 3 is a view, more or less diagram- ,matically, of a section on the line 3-3 of F 4. Y I

' Fig. 4 is a plan view of the folder;

Fig. 5 is a view showjngmore or less diagrammatically two fabric sections as having entered the folder;

Fig. 6 is a view showing more or less diagrammatically the folds in the fabric sectionsand the relation of the lines of stitches themto I 1 Fig. i is a top perspective view of a seam made on my folder.

My improved folder consists of a base plate having an upwardly extending curved guidi wall which supports a guidmg plate which is shaped so'as to receive and fold the edge of an upper ply .of fabric and also form a rentrant fold in the upper ply of fabric back from the edge thereof. The upwardly projecting wall carries a plate with a recess which coiiperates with the extreme edge of the guiding plate in the forming of this rentrant fold.

The invention will be more clearl understoodby a detail reference to the gures Specification of Letters Patent.

Patented July 1, 191 9.

' Application filed November s, 1918. Serial No. 281,648.

in the drawings. My folder, as illustrated,

consistsof a supporting base 1, having an upwardly projecting curved Wall 2. Said wall curves to the left, as viewed in Fig. -1, so asQto form a guiding recess 3 for the fabric section F. This guidin recess is shaped so as to fold the edge 0 an under pl of fabric. While I prefer to fold the ot er edge of fabric, it will be understood that, from certain aspects of the invention, the edge of the under ply of fabric may lie. straight and unfolded, as this edge is on the wrong side of the seam, and .when

the edge is unfolded then the wall will be straight rather than curved. 7

At the extreme upper edge of this wall 2 is a supporting bar 4, and mounted on the supporting bar 4 is a curved guiding plate 5. Said plate extends outwardly from the bar 4, thence upwardly, thence 'downwardly and thence inwardly to a free edge 6. Secured to'the bar 4 is a plate 7 and said late, together with the bar and guiding w 2, are formed with a recess 8 which is directly opposite the free edge 6 of the folder. The bar 4 is also formed with a recess 9, which receives the.

edge of the upper ply of. fabric and guides the same. The fabric section directed by the curved guiding plate 5 is indicated at F in the drawings. As the fabric sections enter the folder the lower fabric section has its edge turned up, as indicated at 10 in Fig. 5, while the upper fabric section has its extreme edge turned downwardly and inwardly, as indicated at 11. The upper section F is also folded back as at 12, to form a rentrant fold. In Figs. 6 and 7 of the drawings, I have shown the completed seam. This reentrant fold gives to the seam an appearance of having a tape applied thereto. Said tape is indicated at T in Figs. 6 and 7 of the drawings. a

The fabric sections are joined by two parallel lines of stitches, indicated at 13 and 14. The line of stitches 14 passes through both fabric sections and secures the folded in edge 11 of the fabric section F. The line of stitches 13 passes through the rentrant fold and the folded over edge 10 of the under fabric section. It is understood, of course, that the fabric sections, 'after they are properly folded and placed relative to each other, pass directly from the folder to thence over the bar,

thestitching mechanism,'which consists of a pair of needles arranged for forming two parallel lines of stitches.

' The details of construction ofthe folder may be varied, the essential feature consisting in the guiding of the upper section of the fabric in such away as to fold its extreme edge and form a rentrant fold back I from the edge, so as to give the appearance ried thereby and curved guiding plate being shaped so as to' fold the edge of an upper fabric section and form a reentrant fold therein back from the folded edge, whereby the seam will have the appearance of having been covered by a tape.

2. A folder for sewing machines comprising a base plate having a vertically extend-,

ing wall, devices carried thereby having a recess for receiving a reentrant fold in the upper section of fabric, a curved plate car ried by the wall and extending upwardly and over the wall and having its free edge disposed relative to said recess, so that an upper section of fabric uided by said curved plate will have its me edge folded underneath and a rentrant fold formed in said fabric section-back from its edge to give said fabric section the appearance of having a tape applied thereto.

3. A folder for sewing machines comprising a base plate having a vertically extend- 40 ing wall, devices carried thereby having a recess for receiving a reiintrant fold'in the upper section of the fabric, a curved, plate carried, by the wall and extending upwardly and over the wall and having its free edge disposed relativeto said recess, so thatan upper section of fabric guided by v said curved plate will have its free edge folded underneath and a rentra'nt fold formed in said fabric sectionback from its edge to give said fabric section the appearance ofhaving a tape applied thereto, said vertical wall and devices supported thereby being shaped so' as to fold over the edge of the-lowe'r section of fabric. 7

In testimony whereof, I affix my signature, in the presence of two witnesses.

JESSE J. HEAP.

Witne$esz MATTHEW P. RYAN,

.RoBnRT J. MITCHELL. 

